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Neurology. 2012 May 22;78(21):1678-83. doi: 10.1212/WNL.0b013e3182575142.

Inpatient statin use predicts improved ischemic stroke discharge disposition.

Author information

  • 1Department of Neuroscience, Kaiser Permanente, Redwood City, CA, USA. alexander.c.flint@kp.org

Abstract

OBJECTIVE:

To determine whether statin use is associated with improved discharge disposition after ischemic stroke.

METHODS:

We used generalized ordinal logistic regression to analyze discharge disposition among 12,689 patients with ischemic stroke over a 7-year period at 17 hospitals in an integrated care delivery system. We also analyzed treatment patterns by hospital to control for the possibility of confounding at the individual patient level.

RESULTS:

Statin users before and during stroke hospitalization were more likely to have a good discharge outcome (odds ratio [OR] for discharge to home = 1.38, 95% confidence interval [CI] 1.25-1.52, p < 0.001; OR for discharge to home or institution = 2.08, 95% CI 1.72-2.51, p < 0.001). Patients who underwent statin withdrawal were less likely to have a good discharge outcome (OR for discharge to home = 0.77, 95% CI 0.63-0.94, p = 0.012; OR for discharge to home or institution = 0.43, 95% CI 0.33-0.55, p < 0.001). In grouped-treatment analysis, an instrumental variable method using treatment patterns by hospital, higher probability of inpatient statin use predicted a higher likelihood of discharge to home (OR = 2.56, 95% CI 1.71-3.85, p < 0.001). In last prior treatment analysis, a novel instrumental variable method, patients with a higher probability of statin use were more likely to have a good discharge outcome (OR for each better level of ordinal discharge outcome = 1.19, 95% CI 1.09-1.30, p = 0.001).

CONCLUSIONS:

Statin use is strongly associated with improved discharge disposition after ischemic stroke.

Comment in

PMID:
22614435
[PubMed - indexed for MEDLINE]
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